gerrit.simantics Code Review - simantics/sysdyn.git/blob

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2014 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.sysdyn.ui.properties.widgets.expressions;\r
  13 \r
  14 import java.util.Arrays;\r
  15 import java.util.List;\r
  16 import java.util.Map;\r
  17 \r
  18 import org.eclipse.jface.layout.GridDataFactory;\r
  19 import org.eclipse.jface.layout.GridLayoutFactory;\r
  20 import org.eclipse.jface.text.BadLocationException;\r
  21 import org.eclipse.jface.text.IDocument;\r
  22 import org.eclipse.swt.SWT;\r
  23 import org.eclipse.swt.custom.VerifyKeyListener;\r
  24 import org.eclipse.swt.events.FocusAdapter;\r
  25 import org.eclipse.swt.events.FocusEvent;\r
  26 import org.eclipse.swt.events.FocusListener;\r
  27 import org.eclipse.swt.events.KeyListener;\r
  28 import org.eclipse.swt.events.ModifyListener;\r
  29 import org.eclipse.swt.graphics.Point;\r
  30 import org.eclipse.swt.widgets.Button;\r
  31 import org.eclipse.swt.widgets.Composite;\r
  32 import org.eclipse.swt.widgets.Event;\r
  33 import org.eclipse.swt.widgets.Label;\r
  34 import org.eclipse.swt.widgets.Listener;\r
  35 import org.eclipse.swt.widgets.Table;\r
  36 import org.simantics.databoard.Bindings;\r
  37 import org.simantics.db.ReadGraph;\r
  38 import org.simantics.db.Resource;\r
  39 import org.simantics.db.WriteGraph;\r
  40 import org.simantics.db.common.CommentMetadata;\r
  41 import org.simantics.db.common.request.ReadRequest;\r
  42 import org.simantics.db.common.request.WriteRequest;\r
  43 import org.simantics.db.common.utils.ListUtils;\r
  44 import org.simantics.db.exception.DatabaseException;\r
  45 import org.simantics.db.layer0.util.RemoverUtil;\r
  46 import org.simantics.db.request.Read;\r
  47 import org.simantics.layer0.Layer0;\r
  48 import org.simantics.sysdyn.SysdynResource;\r
  49 import org.simantics.sysdyn.manager.SysdynModel;\r
  50 import org.simantics.sysdyn.manager.SysdynModelManager;\r
  51 import org.simantics.sysdyn.representation.Stock;\r
  52 import org.simantics.sysdyn.representation.Valve;\r
  53 import org.simantics.ui.SimanticsUI;\r
  54 import org.simantics.utils.datastructures.Pair;\r
  55 \r
  56 public class StockExpression implements IExpression {\r
  57 \r
  58     private final ExpressionWidgetInput input;\r
  59     private ExpressionField integralExpression, initialExpression;\r
  60     private ExpressionField lastSelectedText;\r
  61     \r
  62     public StockExpression(ExpressionWidgetInput input) {\r
  63         this.input = input;\r
  64     }\r
  65     \r
  66     @Override\r
  67     public void createExpressionFields(Composite parent, Map<String, Object> data, Table allowedVariables) {\r
  68         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(parent);\r
  69         String initialEquation = data.get("initialEquation") != null ? (String)data.get("initialEquation") : "";\r
  70         String integralEquation = data.get("integral") != null ? (String)data.get("integral") : getDefaultIntegral(input.expression);\r
  71 \r
  72 \r
  73         Label label = new Label(parent, SWT.NONE);\r
  74         label.setText("Integral");\r
  75 \r
  76         Composite integralComposite = new Composite(parent, SWT.NONE);\r
  77         GridDataFactory.fillDefaults().grab(true, true).applyTo(integralComposite);\r
  78         GridLayoutFactory.fillDefaults().numColumns(2).applyTo(integralComposite);\r
  79         \r
  80         integralExpression = new ExpressionField(integralComposite, SWT.BORDER, allowedVariables, true, input);\r
  81         integralExpression.setExpression(integralEquation);\r
  82         GridDataFactory.fillDefaults().grab(true, true).applyTo(integralExpression);\r
  83         integralExpression.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
  84 \r
  85             @Override\r
  86             public void focusLost(FocusEvent e) {\r
  87                 lastSelectedText = integralExpression;\r
  88             }\r
  89         });\r
  90         \r
  91         Button defaultButton = new Button(integralComposite, SWT.PUSH);\r
  92         defaultButton.setText("Use default");\r
  93         defaultButton.addListener(SWT.Selection, new Listener() {\r
  94 \r
  95                 @Override\r
  96                 public void handleEvent(Event event) {\r
  97                         switch (event.type) {\r
  98                         case SWT.Selection:\r
  99                                 StockExpression.this.integralExpression.setExpression(getDefaultIntegral(input.expression));\r
 100                                 SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 101 \r
 102                                         @Override\r
 103                                         public void perform(WriteGraph graph)\r
 104                                                         throws DatabaseException {\r
 105                                                 // Delete the possible integral expression from the database to note \r
 106                                                 // that we are in the "default" mode.\r
 107                                                 graph.startUndoContext();\r
 108                                                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 109                                                 graph.deny(input.expression, sr.StockExpression_useCustomIntegral);\r
 110                                                 graph.claimLiteral(input.expression, sr.StockExpression_integralEquation, getDefaultIntegral(graph, input.expression));\r
 111                                                 \r
 112                                         CommentMetadata cm = graph.getMetadata(CommentMetadata.class);\r
 113                                         graph.addMetadata(cm.add("Use default"));\r
 114                                                 \r
 115                                         }\r
 116                                 });\r
 117                                 break;\r
 118                         }\r
 119                 }\r
 120 \r
 121         });\r
 122 \r
 123         label = new Label(parent, SWT.NONE);\r
 124         label.setText("Initial\nValue");\r
 125 \r
 126         initialExpression = new ExpressionField(parent, SWT.BORDER, allowedVariables, true, input);\r
 127         initialExpression.setExpression(initialEquation);\r
 128         GridDataFactory.fillDefaults().grab(true, true).applyTo(initialExpression);\r
 129         initialExpression.getSourceViewer().getTextWidget().addFocusListener(new FocusAdapter() {\r
 130 \r
 131             @Override\r
 132             public void focusLost(FocusEvent e) {\r
 133                 lastSelectedText = initialExpression;\r
 134             }\r
 135         });\r
 136 \r
 137         lastSelectedText = initialExpression;\r
 138     }\r
 139 \r
 140     @Override\r
 141     public void focus() {\r
 142         this.lastSelectedText.focus();\r
 143     }\r
 144 \r
 145     @Override\r
 146     public List<ExpressionField> getExpressionFields() {\r
 147         return Arrays.asList(this.integralExpression, this.initialExpression);\r
 148     }\r
 149 \r
 150     @Override\r
 151     public void readData(final Resource expression, final Map<String, Object> data) {\r
 152         Pair<String, String> equations = null;\r
 153         if (expression != null && data.get("initialEquation") == null) {\r
 154                 try {\r
 155                     equations = SimanticsUI.getSession().syncRequest(new Read<Pair<String, String>>() {\r
 156         \r
 157                         @Override\r
 158                         public Pair<String, String> perform(ReadGraph graph) throws DatabaseException {\r
 159                             SysdynResource sr = SysdynResource.getInstance(graph);\r
 160                             if (graph.isInstanceOf(expression, sr.StockExpression)) {\r
 161                                 String initialEquation = graph.getPossibleRelatedValue(expression, sr.StockExpression_initialEquation);\r
 162                                 String integralEquation = graph.getPossibleRelatedValue(expression, sr.StockExpression_integralEquation);\r
 163                                 initialEquation = (initialEquation != null) ? initialEquation : "";\r
 164                                 return new Pair<String, String>(integralEquation, initialEquation);\r
 165                             } else {\r
 166                                 return new Pair<String, String>(null, "");\r
 167                             }\r
 168                         }\r
 169         \r
 170                     });\r
 171                 } catch (DatabaseException e1) {\r
 172                     e1.printStackTrace();\r
 173                 }\r
 174                 data.put("initialEquation", equations.second);\r
 175         }\r
 176 \r
 177         if (equations.first == null) {\r
 178                 try {\r
 179                                 SimanticsUI.getSession().syncRequest(new WriteRequest() {\r
 180 \r
 181                                         @Override\r
 182                                         public void perform(WriteGraph graph) throws DatabaseException {\r
 183                                                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 184                                         graph.claimLiteral(input.expression, sr.StockExpression_integralEquation, getDefaultIntegral(graph, input.expression));\r
 185                                         graph.startUndoContext();\r
 186                                 CommentMetadata cm = graph.getMetadata(CommentMetadata.class);\r
 187                                 graph.addMetadata(cm.add("Set expression"));\r
 188                                         }\r
 189 \r
 190                                 });\r
 191                         } catch (DatabaseException e) {\r
 192                                 // TODO Auto-generated catch block\r
 193                                 e.printStackTrace();\r
 194                         }\r
 195                 \r
 196                 data.put("integral", getDefaultIntegral(expression));\r
 197         } else {\r
 198                 try {\r
 199                         final String integral = equations.first;\r
 200                                 SimanticsUI.getSession().syncRequest(new ReadRequest() {\r
 201 \r
 202                                         @Override\r
 203                                         public void run(ReadGraph graph) throws DatabaseException {\r
 204                                                 SysdynResource sr = SysdynResource.getInstance(graph);\r
 205                                         if (graph.hasStatement(input.expression, sr.StockExpression_useCustomIntegral)) {\r
 206                                                 data.put("integral", integral);\r
 207                                         } else {\r
 208                                                 data.put("integral", getDefaultIntegral(graph, expression));\r
 209                                         }\r
 210                                         }\r
 211 \r
 212                                 });\r
 213                         } catch (DatabaseException e) {\r
 214                                 data.put("integral", equations.first);\r
 215                                 e.printStackTrace();\r
 216                         }\r
 217         }\r
 218 \r
 219     }\r
 220 \r
 221     @Override\r
 222     public void replaceSelection(String var) {\r
 223         if(lastSelectedText != null) {\r
 224             IDocument doc = lastSelectedText.getDocument();\r
 225             try {\r
 226                 Point selection = lastSelectedText.getSelection();\r
 227                 doc.replace(selection.x, selection.y, var);\r
 228                 lastSelectedText.setSelection(selection.x + var.length());\r
 229             } catch (BadLocationException e) {\r
 230                 e.printStackTrace();\r
 231             }\r
 232         }\r
 233     }\r
 234 \r
 235     @Override\r
 236     public void save(final Resource expression, final Map<String, Object> data) {\r
 237         final String currentInitial = this.initialExpression.getExpression();\r
 238         final String currentIntegral = this.integralExpression.getExpression();\r
 239         if (currentIntegral == null) {\r
 240                 this.integralExpression.setExpression(getDefaultIntegral(expression));\r
 241         }\r
 242         if(!currentInitial.equals(data.get("initialEquation"))\r
 243                         || currentIntegral == null\r
 244                         || !currentIntegral.equals(data.get("integral"))) {\r
 245             SimanticsUI.getSession().asyncRequest(new WriteRequest() {\r
 246 \r
 247                 @Override\r
 248                 public void perform(WriteGraph g)\r
 249                 throws DatabaseException {\r
 250                     SysdynResource sr = SysdynResource.getInstance(g);\r
 251                     Layer0 l0 = Layer0.getInstance(g);\r
 252                     \r
 253                     if(!g.isInstanceOf(expression, sr.StockExpression)) {\r
 254                         Resource variable = g.getPossibleObject(expression, l0.PartOf);\r
 255                         Resource expressionList = g.getPossibleObject(variable, sr.Variable_expressionList);\r
 256                         Resource temp = g.newResource();\r
 257                         ListUtils.replace(g, expressionList, expression, temp);\r
 258                         \r
 259                         for(Resource predicate : g.getPredicates(expression)) {\r
 260                             g.deny(expression, predicate);\r
 261                         }\r
 262                         g.claim(expression, l0.InstanceOf, null, sr.StockExpression);\r
 263 \r
 264                         ListUtils.replace(g, expressionList, temp, expression);\r
 265 \r
 266                         RemoverUtil.remove(g, temp);\r
 267 \r
 268                         g.claim(expression, l0.PartOf, variable);\r
 269                     }\r
 270                     g.claimLiteral(expression, sr.StockExpression_initialEquation, currentInitial);\r
 271                     \r
 272                     if (!currentIntegral.equals(g.getPossibleRelatedValue(expression, sr.StockExpression_integralEquation, Bindings.STRING))) {\r
 273                         // If the value is not same as default, enable the custom tag\r
 274                         g.claim(expression, sr.StockExpression_useCustomIntegral, expression);\r
 275                     }\r
 276                     g.claimLiteral(expression, sr.StockExpression_integralEquation, currentIntegral);\r
 277                     \r
 278                     g.startUndoContext();\r
 279                                 CommentMetadata cm = g.getMetadata(CommentMetadata.class);\r
 280                                 g.addMetadata(cm.add("Save"));\r
 281 \r
 282                 }\r
 283 \r
 284             });\r
 285         }\r
 286         this.initialExpression.setExpression(currentInitial);\r
 287         this.integralExpression.setExpression(currentIntegral);\r
 288     }\r
 289 \r
 290     @Override\r
 291     public void updateData(Map<String, Object> data) {\r
 292         if(this.initialExpression != null && this.initialExpression.getExpression() != null)\r
 293             data.put("initialEquation", this.initialExpression.getExpression());\r
 294         if(this.integralExpression != null && this.integralExpression.getExpression() != null)\r
 295             data.put("integral", this.integralExpression.getExpression());\r
 296     }\r
 297 \r
 298     \r
 299     private static String getDefaultIntegral(ReadGraph graph, Resource expression) throws DatabaseException {\r
 300         SysdynResource sr = SysdynResource.getInstance(graph);\r
 301         Layer0 l0 = Layer0.getInstance(graph);\r
 302     \r
 303             // find the variable\r
 304             Resource variable = graph.getPossibleObject(expression, l0.PartOf);\r
 305             if(variable == null)\r
 306                 return "";\r
 307             \r
 308                 SysdynModelManager sdm = SysdynModelManager.getInstance(graph.getSession());\r
 309                 SysdynModel model = sdm.getModel(graph, graph.getSingleObject(variable, l0.PartOf));\r
 310                 model.update(graph);\r
 311                 \r
 312                 Stock stock = (Stock)model.getElement(variable);\r
 313             \r
 314                 String range = graph.getPossibleRelatedValue(expression, sr.Expression_arrayRange);\r
 315                 if(range == null)\r
 316                         range = "";\r
 317         \r
 318             StringBuilder builder = new StringBuilder();\r
 319             builder.append("");\r
 320             for(Valve in : stock.getIncomingValves()) {\r
 321                 builder.append(" + " + in.getName() + range);\r
 322             }\r
 323             for(Valve out : stock.getOutgoingValves()) {\r
 324                 builder.append(" - " + out.getName() + range);\r
 325             }\r
 326             if (builder.indexOf(" + ") == 0)\r
 327                 builder.delete(0, 3);\r
 328             \r
 329             return builder.toString().trim();   \r
 330     }\r
 331     \r
 332     \r
 333     private static String getDefaultIntegral(final Resource expression) {\r
 334         \r
 335         String integral = "";\r
 336         if(expression == null)\r
 337                 return integral;\r
 338         try {\r
 339             integral = SimanticsUI.getSession().syncRequest(new Read<String>() {\r
 340 \r
 341                 @Override\r
 342                 public String perform(ReadGraph graph) throws DatabaseException {\r
 343                         return getDefaultIntegral(graph, expression);\r
 344                 }\r
 345 \r
 346             });\r
 347         } catch (DatabaseException e) {\r
 348             e.printStackTrace();\r
 349         }\r
 350         return integral;\r
 351     }\r
 352 \r
 353     @Override\r
 354     public void addKeyListener(KeyListener listener) {\r
 355         this.initialExpression.getSourceViewer().getTextWidget().addKeyListener(listener);\r
 356         this.integralExpression.getSourceViewer().getTextWidget().addKeyListener(listener);\r
 357 \r
 358     }\r
 359 \r
 360     @Override\r
 361     public void addModifyListener(ModifyListener listener) {\r
 362         this.initialExpression.getSourceViewer().getTextWidget().addModifyListener(listener);\r
 363         this.integralExpression.getSourceViewer().getTextWidget().addModifyListener(listener);\r
 364 \r
 365     }\r
 366 \r
 367     @Override\r
 368     public void addFocusListener(FocusListener listener) {\r
 369         this.initialExpression.getSourceViewer().getTextWidget().addFocusListener(listener);\r
 370         this.integralExpression.getSourceViewer().getTextWidget().addFocusListener(listener);\r
 371     }\r
 372     \r
 373         @Override\r
 374         public void addVerifyKeyListener(VerifyKeyListener listener) {\r
 375                 this.initialExpression.getSourceViewer().getTextWidget().addVerifyKeyListener(listener);\r
 376                 this.integralExpression.getSourceViewer().getTextWidget().addVerifyKeyListener(listener);\r
 377         }\r
 378 \r
 379 }\r